Last Night's Look: Love It or Leave It?Check out the head-turning outfits Diane Kruger, Selena Gomez and more stars were just spotted in! Then decide – fashion-forward or fashion fail!

KATY PERRY

John Mayer's lady friend is clearly in a romantic state of mind, wearing a floral portrait-neckline Dolce & Gabbana gown with Sorelina earrings and a Le Vian ring at the Dream Foundation's gala in Santa Barbara, Calif.